Safety razor



July 31, 1928. 1,678,933 E. c. BUNNEL .L

SAFETY RAZOR Filed March 15, 1927 liqGfiQln L$1 J. F19 J I6 l0 0 O '10/7 1, 35 35 4 36 36 37 v 43 36 INVENTOR; Ear! C Banneff B p79 3 l *1:(BMW ATTORNEY u rocate the sames Patented Jul 'sl, ma-

umrun STATES- ATENT" OFFICE,

EARL c. BUNNELL, or s'rnarnonn, CONNECTICUT, ASSIGNOR no 101111 me, or

new YOBK,'1\T. Y.

earner Razor. I

Application m March 15,1927, Serial mfma're.

This invention relates to. a safety razor, and has more-particularreference to a safety razor of the character which includes alongitudinally reciprocatable blade.-

5 It is an important object of the invention. to provide a safety razorprovided with mechanism of very simple and economical construction forcausing reciprocation of the razor blade when applied to use;

It is a further important object to pro vide a. safetyrazor of the typementioned, theblade reciprocating mechanism of which willinclude aminimum number of parts and will be associated with the blade in a novell and unique manner. A further important object is to providea safetyrazor aving a longitudinally reciprocatable blade, and mechanism foractuating said blade which will be. directly associated with the bladeitself in an improved manner, without the necessity for employing aspecial bladejholder or like device, to obtain uniform, smooth and evenreciprocations- 1 of the blade.

A further important object is to-provide a safety razor of the-typementioned, the blade reciprocating mechanism of which will be of simpleand sensible construction to be easily actuated and will be directlyassociated in an improved manner with the blade itself to reciprocatesaidblade, whereby the load (the blade alone) which said mechanism isrequired to actuate is reduced to a mini mum, and-the reciprocations ofsaid load (the blade) are uniform, smooth and even.

. A further important and more specific object is to rovide asafet'razor including .a reci roca le blade, an "mechanism for actuatln saidblade including a cam upon a rotata' le shaft having tractor elements orthe like adapted to be; ropelled to rotate the camby ridingupon t e faceof a person using the razor, and a. lever mounted. within the razorhandle and passing through the I as usual hole at the center of a bladenow of commerce and associated with said cam to impart to and fromovements tosaidblade asthe cam advances, all as willbehereinafterspecifically set forth. I

A further important and s ecifio object is to provide in the improved saety razor novel means for mounting the razor blade and for mountingand-s11 portin the movable parts cooperating witli said lade torecipshowing of Fig. 1, exoe beingunderstood. that the disclosure hereinis merely illustrative and intended in no way in a limiting sense,changes. in details of construction and arrangement of parts beingpermissibleso lon as within the spirit of the invention 'and' he scopeof the appended claims. w

In the accompanying drawing forming 'a part .of this specification,

Fig. 1 is an elevational view of a-safety I razor ready'for use andhaving-the'features of the invention;' T v 1 y Fig. 2 is a viewcorresponding with the t that the handle is the hinged plate is partlybroken away, an in open position; Fig. 3- is a plan view of the safetyrazor as g rwogld appearfromthe top ofthe sheet 1n 1g. Fig. 4 is anenlarged, central, longitudinal sectional view of the safetyrazor'readyfor use, disclosing the razor blade in longitudinal section and thehandle partially brok n away;

F1 5 is a sectional view as on Knee-5' in Fig. 4;.and v 'Fi 6 is anenlarged plan view of a trace tor e ement.

With respect to the drawing, 10 denotes a supporting and guard platerovided upon its under sidewith a central boss-11 having an opening 12to tightly fit upon an 'end 13 of a hollow handle 14, the handle havingan j annular flange 15 adjacent its end 13 against which said boss 11.engages. See Fig. 4.

The su porting and guard plate 1.0 is provided at its opposite sideedges with the usual guard fingers 16,- extending gently in directionadjacent'the handle in any referred manner, At one of its ends the p ate1 4 10 is provided with spaced ears 17 to receive a hinge pin 18, and atits opposite end said platle9 10 is provided with .a downturned 1p p r 1A retaining plate 20 is arranged above the supporting and guard plate10, and is provided at one of its ends with an ear21 curved about thepin 18, completing ahinge pivotally. supporting. the retaining plate v1upon the supporting and guard plate. At its other end the retainingplate is provided with a downturned curved lip 22 adapted to engageagainst the lip 13, as in ldig, 4i, to maintain the retaining plate inclosed po sition. The retaining plate 20 is cut away to provide acentral approximately rectangular opening 23 adapted to be situatedlongitudinally of the plate when the plates 10 and are in operativerelation. Small brackets 2t secured to the retaining plate 20 adjacentthe opposite ends of the rectangular opening 23, as by screws25, includebearings 26 for the opposite ends oil a roller 27. As disclosed, eachbracket 24- includes a length of material 28 tlat upon the retainingplate 20 and having the screws 25, a length 29 extending away from saidplate 26 and perpendicular to said plate,a length 30 8X.- tendinginwardly of the razor and parallel the length 28 and to the supportingand guard plate when assembled with the re-- taining plate, and a length31 parallel to the length 29-and perpendicular to the plate 10, saidlength 31 having the bearing 26. The lengths 29 ofthe diflerent bearingspro- 1 vide thrust walls of the brackets limiting longitudinal movementof the roller 27 when said brackets are fast to the retaining plate 20,and situatin said roller upon said retaining plate. eeFig. 4.

Theroller 27 is mounted at the side of the rectangular opening 23opposite, the sup- -"porting and uard plate 10, and includes a cam 32desira 1y midway between the brackets 24, and tractor elements or' likedevices 33 between the cam and each bracket. The

cam and tractor elements desirably extend a slight distance into the,rectangular opening 23, as in Fig. 4.

The construction of blade 34 desirably emploped with the present razoris best shown ig. 3. lt is an'article now of commerce, and comprisesabody portion'having cutting edges 36 at its opposite sides, acircular oening 36 through its center, and elliptical s ots 37 at or adjacent itsends and arranged at its'longitudinal center.

Studs 38 mountedupon the supporting and ard plate 10 as at 39, at thelongitu din'a center .of said plate 16' and beneath the rectangularopening 23', are in spaced re-.. lation to the cam 32 at opposite sidesof said cam when in the operative position of the razor, and are adaptedto enter the ellipe tical slots 37 in such manner as to guide the bladewhen assembled with the supporting and guard plate without interferingwitreciprocations of said blade.

A lever 40,- preferably of some considerable length to have a uniform,smooth-and even oscillatory motion, is pivoted in the hollow handle it,as at all, and projects through the circular opening 36, as at 42, whenthe blade is upon the support 16.. The

harness tree end of the lever 'is'bifurcated, as at 43 to ride upon thecam 32, and the portion of said lever surrounding its bifurcated partand within adjacent to the. circular opening 36 is well rounded asindicated at it.- See Fig. f

The supporting and guard plate 10 is provided with small spaced apartprotuberances 4:5 adapted to engage the face of the razor blade whenuponsaid plate 10, and the re- "35 taining plate 26 is provided withlike protuberances 416 to engage the face of the blade adjacent saidplate 26 when in operative position. The protuberances are, obviously,to reduce theii iictional surfaces over which so the blade must ridewhen reeiprocated.

Assuming that the plates l0 and 20ers in hinged relation and the plate20 is in its open position, as .in' Fig. 2, the blade is placed upon theprotuberances :25 of the plate '85 it) so that the studs 38 enter theslots 37 and the tree end of the lever 40 enters the open- 36. Y Theplate 20 is then closed, the proin tuberances 46 coming into engagementwith the blade, the cam 32 entering the bifurcated edge of the blade,while the tractor elements 33 contact with the skin. The contact betweensaid elements and the skin causes the roller and the cam 32 to revolve,and the lever 40 associated with said cam to oscillate. Oscillation ofthe lever, naturally,recipro cates the blade, said blade ridinguniformly, smoothly and evenly over the protuberances 4.5 and 46. Thestuds 38, it will be'noticed, are approximately the width of the slots37, so that the blade is effectually guided to move longitudinally in atruly straight path during reciprocation, there being no transversemovements of the blade liableto jab into the skim lt will be seen thatwhile the blade reciprocating mechanism includes a minimum number ofparts, the direct association of said mechanism with the blade itselfwithout use of a specialblade holder or'like device, provides a simpleand sensible construction capable of being easily actuated to-impart tothe blade longitudinal reciprocatory movements of uniform, smooth andeven character, said blade moving, during its reciprocations, inn linecoinciding with the line of its cutting edge,

What it claim is: r25

In a safety razor, a razor blade supporting plate, a retaining plate:t'or the razor blade, a hollow handle u on said supporting plate, meansupon sai supporting plate adapted to enter longitudinal slots in saidblade for imparting reciprocatory longitudinal movementsto said blade,said-mechanism including a cam upon said retaining plate, and a leverpivoted in said handle and ada ted to'passthrough an opening in said blae and be operatively associated withsaid cam.

gaged with the face of a shaver. to advancesaid roller,fa cam fixed uponthe roller, and a lever pivoted in said handle and adapted to passthrough an opening in said razor blade and be operatively associatedwith said cam.

3. In a safety razor, razor blade supporting and guiding means, a hollowhandle associated with said supporting and guiding means, and mechanismfor imparting reciprocatory longitudinal movements to said blade, saidmechanism including a lever pivoted in said handle and adapted to passthrough an opening in said razor blade, a

' roller, devices upon said roller adapted to be engaged with the faceof a shaver when the razor is in use to advance said roller, and a camfixed upon the roller andadapted to be associated with said lever.

v 4. Ina safety razor, razor blade su orting and guiding means, a hollowhan e associated with said supporting and guiding means, and mechanismfor imparting reciprocatory longitudinal movements to said blade, saidmechanism including a lever pivoted in said handle and having abifurcated end portion adapted to pass throu h an opening in said razorblade, a roller, evices upon said roller adapted to be engaged with theface of a shaver when the razor is in use to advance said roller, and acam fixed upon the rollerand adapted to be associated with thebifurcated portion of said lever.

5. A safety razor comprising a supporting plate, a retaining platehinged to said supporting plate, a hollow handle upon said supportingplate, means upon said supporting plate ada ted to enter longitudinalslots in a razor bla e adapted to rest directly-upon said supportingplate to guide said razor .blade, a roller mounted upon said retainingplate and including a cam' and traction members adapted to be propelledby contact with the face of a shaver as the razor is used, and a leverin said hollow handle and adapted to pass through an opening in saidrazor blade and to be operativel'y associated with said cam, wherebywhen said roller is'advanced said lever is oscillated to reciprocatesaid razor blade. V I

Signed at Bridgeport, in the county of Fairfield, and State ofGonnecticut, this 10th day of March A. D., 1927.

EARL o. BUNNELL.

